Which of the pairs of elements listed will NOT form an ionic solid? A Barium and iodine
B
Calcium and oxygen
C) Lithium and chlorine
D
Oxygen and hydrogen
E Cesium and fluorine

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

B.) falsehope this !